CEN/TS 14482 [documento electrónico] : postal services: trays for international letter mail: test methods and performance requirements / European Committee for Standardization
Postal services [documento electrónico] : automated processing of mail items: address block locator: CEN/TS 14567: January 2004 / European Committee for Standardization
CEN/TS 14773 [documento electrónico] : postal services: quality of service: measurement of loss and substantial delay in priority and first class single piece mail using a survey of test letters / European Committee for Standardization
CEN/TS 14826 [documento electrónico] : postal services: automatic identification of items: two dimensional bar code symbol print quality specification for machine readable digital postage marks / European Committee for Standardization